Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754323 | Establishing a conference call from a call-log | E-Lee Chang, Hong Thi Nguyen, Linda Roberts, Sharon E. Carter | 2004-06-22 |
| 6724872 | Personalized messages over Internet call waiting | Linda Roberts, Anita Hogans Simpson | 2004-04-20 |